Extraction Plan - Peabody Energy

Extraction Plan – North Wambo Underground Mine Longwalls 7 and 8Table A1-3Requirements of the Guideline for Applications for Subsidence Management Plan ApprovalsGuidelineSection6 WRITTEN REPORT6.2 Application AreaRequirementDocument Reference/Comment The minimum extent of the assessment Section 1.3 and Appendix G (Coal Resource Recovery Plan)6.3 Mining System and Resource RecoveryProposed mining method(s) including reasons for selecting the particular method(s);Name of the seam to be mined, seam thickness and proposed extraction thickness;A schedule of proposed mining within the Application Area for the period to be coveredby the SMP;The impact on resource recovery of the remainder of the mining lease(s) and collieryholding area;Justification if proposing to mine only part of a seam;Estimated recovery of the total resource contained, as a percentage and in tonnes;The effects of mining on seams above or below the seam to be mined; andAny further plans for mining other seams within the Application Area.6.4 Site Conditions of the Application AreaSurface topography;Cover depths;Overburden stratigraphy;Location of the proposed workings in relation to any existing and/or future workings;The lithological and geotechnical characteristics of the overburden, roof and floor strata;andExistence and characteristics of geological structures.Section 3 of Appendix G (Coal Resource Recovery Plan)Sections 3.1 and 3.6 of Appendix G (Coal ResourceRecovery Plan)Section 3.4 of Appendix G (Coal Resource Recovery Plan)Sections 3.5 and 3.6 of Appendix G (Coal ResourceRecovery Plan)Section 3.1 of Appendix G (Coal Resource Recovery Plan)Section 3.6 of Appendix G (Coal Resource Recovery Plan)Section 3.5 of Appendix G (Coal Resource Recovery Plan)Section 3.5 of Appendix G (Coal Resource Recovery Plan)Plan 2 of Appendix G (Coal Resource Recovery Plan)Section 3.2 of Appendix G (Coal Resource Recovery Plan)Section 2.2 of Appendix G (Coal Resource Recovery Plan)Plans 4b, 4c and 4d of Appendix G (Coal Resource RecoveryPlan)Sections 2.2 and 2.3 of Appendix G (Coal ResourceRecovery Plan)Section 2.4 of Appendix G (Coal Resource Recovery Plan)EP/SMP LW7-8 Rev B December 2012 Page A1-8